Zoo elephants don’t live as long as those in the wild, according to a study sure to cause debate about keeping the giant animals on display. Researchers compared the life spans of elephants in European zoos with those living in Amboseli National Park in Kenya and others working on a timber enterprise in Buma. Animals in the wild or in natural working conditions had life expectancies twice than or more of their relatives in zoos.
Animal care activists have urged in recent years to discourage keeping elephants in zoos, largely because of the lack of space and small numbers of animals that can be kept in a group.
The researchers found that the median life span for African elephants in European zoos was 16.9 years, compared with 56 years for elephants who died of natural causes in Kenya’s Amboseli Park. Adding in those elephants killed by people in Africa lowered the median life expectancy there to 35.9 years. For the more endangered Asian elephants, the median life span in European zoos was 18.9 years, compared with 41.7 years for those working in the Burma Timber Enterprise. Median means half died younger than that age and half lived longer.
There is some good news, though. The life expectancies of zoo elephants have improved in recent years, suggesting an improvement in their care and raising, but “Protecting elephants in Africa and Asia is far more successful than protecting them in Western zoos.”
There are about 1,200 elephants in zoos, half in Europe, researchers concentrated on female elephants, which make up 80 percent of the zoo population. One amazing thing was that Asian elephants born in zoos had shorter life spans that those brought to the zoos from the wild.
Zoos usually lack large areas that elephants are used to in the wild, and that zoo animals often are alone or with one or two other unrelated animals, while in the wild they tend to live in related groups of 8 to 12 animals. In Asian elephants, baby death rates are two to three times higher in zoos than in the Burmese logging camps, and then, in adulthood, zoo-born animals die young. People are not sure why.What is argued about in this passage?
| A．Zoo elephants don’t live as long as those in the wild. |
| B．Elephants should not be on display. |
| C．Asian elephants are in danger. |
| D．Asia is far more successful in protecting elephants in zoos. |
What does the underlined word “median” mean according to the passage?
| A．Average | B．Longest. | C．Shortest. | D．Ordinary. |
Which of the following is Not the disadvantage of keeping elephants in zoos?
| A．Limited number of relatives. | B．Lack of space. |
| C．Shorter life expectancy. | D．Less attention. |
Who are expected to pay more attention to the issue addressed?
| A．Zoologists. | B．Animal care activists. |
| C．Zoo visitors. | D．The public. |
Researchers in the psychology department at the University of California at Los Angeles (UCLA) have discovered a major difference in the way men and women respond to stress.This difference may explain why men are more likely to suffer from stress related disorders.
Until now，psychological research has maintained that both men and women have the same “fightorflight” reaction to stress.In other words，individuals either react with aggressive behavior，such as verbal or physical conflict (“fight”)，or they react by withdrawing from the stressful situation (“flight”)．However，the UCLA research team found that men and women have quite different biological and behavioral responses to stress.While men often react to stress in the fightorflight response，women often have another kind of reaction which could be called “tend and befriend.” That is，they often react to stressful conditions by protecting and nurturing their young (“tend”)，and by looking for social contact and support from others—especially other females (“befriend”)．
Scientists have long known that in the fightorflight reaction to stress，an important role is played by certain hormones(激素) released by the body.The UCLA research team suggests that the female tendorbefriend response is also based on a hormone.This hormone，called oxytocin，has been studied in the context of childbirth，but now it is being studied for its role in the response of both men and women to stress.The principal investigator，Dr.Shelley E．Taylor，explained that “animals and people with high levels of oxytocin are calmer，more relaxed，more social，and less anxious.” While men also secrete(分泌) oxytocin，its effects are reduced by male hormones.
In terms of everyday behavior，the UCLA study found that women are far more likely than men to seek social contact when they are feeling stressed.They may phone relatives or friends，or ask directions if they are lost.
The study also showed how fathers and mothers responded differently when they came home to their family after a stressful day at work.The typical father wanted to be left alone to enjoy some peace and quiet.For a typical mother，coping with a bad day at work meant focusing her attention on her children and their needs.
The differences in responding to stress may explain the fact that women have lower frequency of stressrelated disorders such as high blood pressure or aggressive behavior.The tendandbefriend regulatory(调节的) system may protect women against stress，and this may explain why women on average live longer than men.The UCLA study shows that in response to stress，men are more likely than women to ______.
| A．turn to friends for help |
| B．solve a conflict calmly |
| C．find an escape from reality |
| D．seek comfort from children |
Which of the following is true about oxytocin according to the passage?
| A．Men have the same level of oxytocin as women do. |
| B．Oxytocin used to be studied in both men and women. |
| C．Both animals and people have high levels of oxytocin. |
| D．Oxytocin has more of an effect on women than on men. |
What can be learned from the passage?
| A．Male hormones help build up the body's resistance to stress. |
| B．In a family a mother cares more about children than a father does. |
| C．Biological differences lead to different behavioral responses to stress. |
| D．The UCLA study was designed to confirm previous research findings. |
Which of the following might be the best title of the passage?
| A．How men and women get over stress |
| B．How men and women suffer from stress |
| C．How researchers overcome stress problems |
| D．How researchers handle stress related disorders |
What are American high schools like? Well, I’m happy to tell you what I know.
When I started school here, it had already been a week since the school opened. At this school, freshmen usually go on a trip for about three days at the beginning of school. Unfortunately I missed that wonderful trip, which would have been the best time to get to know my classmates. I was really sad. I wished I’d known about it earlier.
Despite the disappointment, however, I gradually adapted to my new life and school.
There is a space in the basement of the teaching building where students chat and meet each other. As we do not always have the same classrooms and classmates, the school wants us to get to know each other there. Students usually come to school early, sit in that space and have fun. Around the space, there are many lockers for students to leave their books in, so that students do not have to carry a heavy schoolbag everywhere.
It really surprises me that we have almost no textbooks. We only have textbooks for World History and Algebra 2 and they are big and heavy, like bricks. For other classes, we only need binders (活页夹) with paper in them. Without textbooks, students learn things freely and actively. For example, my humanities teacher just teaches us what is in her mind at the time. We never know what we will learn.
Another difference between American schools and Chinese schools is that American schools care about students’ morality more than their academic studies. For example, if you do not finish your homework, you will just be asked to do it later, but if you cheat or lie, you will get a warning or even be kicked out.
I think that most students here are good at schoolwork as well, but compared to Chinese students, they can make learning a more joyful experience. I think we should take the good points from our two different kinds of education to perfect our approach to studying. What was the writer sad for?
| A．He was late for school. |
| B．He missed the trip at the beginning of school. |
| C．He didn’t know anyone. |
| D．American students looked down upon him. |
Why do students go to the basement of the teaching building?
| A．To attend class. | B．To share a classroom. |
| C．To have fun. | D．To meet teachers. |
How do teachers in the US teach the students?
| A．However they want to. |
| B．They use bricks. |
| C．Some use textbooks; some teach freely. |
| D．They always teach as required. |
According to the passage, in American high schools, ________.
| A．you are likely to be kicked out if you cheat |
| B．you’ll be punished if you do not finish your homework |
| C．students are better at school work than Chinese students |
| D．students care much about the grades they get |
The new high-speed railway line between Urumqi, capital of the Xinjiang Uygur self-governing region, and Lanzhou, capital of Gansu province, has cut train travel time by half to less than 12 hours.
The dramatic improvement will benefit many families planning reunions for Spring Festival.
"For the first time, I feel home is not that far away after all," said Liang Shaofu as he boarded a high-speed train in Urumqi with six members of his family.
The 35-year-old left Lanzhou to set up a dry fruit business in Xinjiang eight years ago, and he has now settled in Urumqi.
The 1,776-km line, which passes through Qinghai province and is the country's first high-speed railway to be built in a high-altitude region, came into service on Dec 26.
"We normally drive home for Spring Festival to avoid the difficulties of buying seven train tickets for the whole family during the peak season," Liang said. "Driving can be very tiring and dangerous sometimes, so one year we even decided not to go back to Lanzhou simply to avoid the trip.
More than 600,000 passengers traveled on the line during its first month, and the Urumqi Railway Bureau said the introduction of high-speed services will ease transport pressure during the Spring Festival peak season.
The existing usual railway line could no longer support Xinjiang's development. All passenger trains will gradually shift to the new link, leaving the old one to be used for goods. As a result, Xinjiang's annual goods ability could reach 200 million metric tons from the current 70 million.
The line passes through areas that experience high winds, and it also crosses parts of the deserted Qinghai-Tibet Plateau and the bone-dry sands of the Gobi Desert.
The project could help China to promote its high-speed railway technology abroad, said Ma Xizhang, director of the Lanzhou-Xinjiang railway project's management department in Xinjiang.How long did it take to go from Urumqi to Lanzhou by the usual train before?
| A．about 12 hours. | B．About 6 hours. |
| C．About 18 hours. | D．About 24 hours. |
What’s the main advantage of the new high-speed railway?
| A．It takes more time to go to Urumqi to Lanzhou. |
| B．It will be more convenient for people all over the country to Xinjiang. |
| C．All the people in Lanzhou can return home on festivals. |
| D．It helps to improve Xinjiang’s development. |
From the passage we can learn _______.
| A．Xinjiang’s annual goods ability can increase nearly four times |
| B．the new railway technology may help more railway lines to be built abroad |
| C．the high-speed railway lines can’t be built across the bone-dry sands |
| D．the old railway lines can only carry goods now |
Which of the following is true according to the passage?
| A．The new high-speed railway line is good for all people to go home. |
| B．The new high-speed railway line benefits businessmen to carry goods. |
| C．Taking the new train is safer than driving home from Urumqi to Lanzhou. |
| D．Businessmen seldom went home for Spring Festival before. |
Every Wednesday, I go to Cantata Adult Life Services, a local retirement community in Brookfield, Illinois, US, with my classmates to do community service.
After my very first visit to Cantata, my life changed forever. That may sound a bit dramatic, but volunteering with the elderly has changed my views on life.
Our visits last about an hour, and we bring 25-30 students every time. We play board games and cards with the residents while we’re there.
You can watch all the movies and TV shows you want about “life back then”, but nothing compares to talking to the people who were actually there. Just hearing their stories has touched me in a way I never thought possible.
Whether it was talking to 98-year-old “Hurricane Hilda” about her glory days as a roller skater or chatting with Lou about the times she danced with a famous actor, I was completely attracted by every single memory the residents wanted to share with me.
Even the residents who don’t have amazing memories make the experience satisfying . I remember visiting Mrs Robinson. She couldn’t recall much about her past, but she told me she’d never forget how kind I wasjust to listen to her “rambling (漫谈)”. It made me realize that it’s the little things that make life worth living. That’s something I won’t forget anytime soon.
If there’s one thing I’ve realized in my three years of visiting Cantata, it’s that presence –just being there –means more than anything to many of the residents. And despite how busy our lives are, there’s always time to make someone’s day.
For me, it feels great to be a source of happiness, a smile on a bad day or a listening ear for old memories. And at the end of the day, that’s all that matters.It’s easy to feel like you don’t have anything in common with the elderly –especially when you’re a teenager. But that’s not true at all.
I hate to be overly clichéd (陈词滥调的) here, but age really is just a number. As young adults, it’s important for us to realize this sooner rather than later. We can learn a lot from the elderly, and they can often benefit from teenagers too.What do the volunteers do according to the passage?
| A．They share everything with the residents. |
| B．They play board games and cards with the residents. |
| C．They watch the residents play games. |
| D．They buy gifts for the residents. |
According to the writer, what is the most important thing that volunteers can do for the elderly?
| A．Playing with them. | B．Benefiting from them. |
| C．Helping them. | D．Being there with them. |
What does the writer want to tell us by writing this passage ?
| A．We don’t have anything in common with the elderly. |
| B．Age is just a number. |
| C．It is important to help the elderly. |
| D．Young adults and the elderly can benefit from each other. |
We’ve been covering standing desks for a long time now because experts agree that sitting all day is killing us. We want to be productive while also keeping our bodies healthy. Over the years, there have been several solutions to this from fixed standing desks to adjustable ones, portable desks to ones that change into shelves.
However, the most high tech and elegant solution has to be this new smart desk called The Stir Kinetic Desk. The desk learns your daily behaviors and moves between a sitting and standing height regularly throughout the day to keep you moving without interrupting your work flow.
You can program specific sitting and standing intervals or let the desk set the schedule. If you tend to sit while returning emails in the morning, but always want to stand during that afternoon conference call, the desk will learn those regular habits and adjust the schedule to fit them. Of course, the desk can always be manually lowered or raised by using the touch screen on the lower left comer of the desk.
When switching positions, the desk gently dips and rises to let you know that a change is coming up. If you’re not ready to switch positions at that time, you can tap the touchscreen to stay sitting or standing for a while longer.
The built-in touchscreen also keeps track of your daily sitting and standing times and tells you how many calories you’ve burned. You can even set goals for how long or often you want to stand. The desk also works with fitness devices like the FitBit to track your movements.
All of that smart tech doesn’t come cheap though. The M1 desk, which is the everyday model, runs a steep $2,990, while the more executive model with added features, the F1, goes for$4,190.
While expensive, it’s worth thinking of how much time we spend at our desks. Much like a good mattress(床垫), a good desk that works with you is worth the investment. Hopefully in a few years these smart, integrated desks will be more common and less expensive.
The Stir Kinetic Desk has been designed to_______.
| A．help users with their work |
| B．keep users moving all the time |
| C．get users to exercise while working |
| D．remind users of their working schedule |
Which is the feature of the touchscreen of the desk?
| A．It can tell users when to change positions. |
| B．It can track users’ changes of positions. |
| C．It can keep users in a fixed position. |
| D．It can detect users’ health condition. |
Which of the following can best describe the desk?
| A．Productive but challenging. |
| B．Convenient but unaffordable. |
| C．Complex and impractical. |
| D．Multi-functional and intelligent. |
What does the author intend to tell us in the last paragraph?
| A．To spend money on such a desk is rewarding. |
| B．We should get such a desk as soon as possible. |
| C．It won’t be long before the desk is widely used. |
| D．Desks play a very important role in our daily life. |
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